Observer-Based H∞ Controller Design for High Frequency Stick-Slip Vibrations Mitigation in Drill-String of Rotary Drilling Systems

R Riane, MZ Doghmane, M Kidouche, S Djezzar - Vibration, 2022 - mdpi.com
The drilling process is among the most crucial steps in exploration and production activities
in the petroleum industry. It consists of using mechanical mechanisms to crush rocks by the …

Failure diagnosis of rotating Machines for steam turbine in Cap-Djinet thermal power plant

S Benammar, KF Tee - Engineering Failure Analysis, 2023 - Elsevier
Abstract The Cap-Djinet thermal power plant is a 1872-megawatt (MW) gas power plant
located in Djinet in Algeria. The steam turbine is an important strategic machine in this plant …

Dynamic failure analysis and lifetime estimation of Tool-string in rotary drilling system under Torsional-Axial coupled vibrations

I Kessai, S Benammar, MZ Doghmane - Engineering Failure Analysis, 2022 - Elsevier
Failure analysis and lifetime assessment of drilling systems are very important to reduce
maintenance costs. Of all the failure modes, coupled vibration due to the stick–slip …

Weight-On-Bit Variations Analyses in the Drillstring of Rotary Drilling Systems Under Stick-Slip Vibrations

I Kessai, MZ Doghmane, S Benammar - Artificial Intelligence and …, 2022 - Springer
In this article, the main objective is to study the influences of weight-on-bit variation on the
severity of stick-slip vibrations that appear in the toolstring of the rotary drilling systems …